Russian President Vladimir Putin said on Wednesday that the threat of nuclear conflict in Ukraine was still on the rise, but stressed that Moscow had no intention of launching a pre-emptive strike amid concerns that nuclear arms could be used in Ukraine.Such a threat is growing, needless to say, the Russian leader said during a televised meeting of the Kremlin's Human Rights Council, adding that Moscow would not be the first to use nuclear weapons under any circumstances.We are not crazy, we know what nuclear weapons are We are not going to brandish them like a razor, running around the world, but, of course, were aware of the fact that we have them, he said.Russia saw nuclear weapons as a means of protection, Putin added.Conceding that the Russian invasion of Ukraine might have become a "lengthy process," Putin nevertheless praised Moscow's territorial gains, calling the regions the Kremlin claims to have annexed from Ukraine a "significant result" of the military campaign.Putin also said that half the Russians who were called up for military service in September had now been deployed to Ukraine and that there is no reason to talk about further mobilization."Out of 300,000 of our mobilized fighters, our men, defenders of the fatherland, 150,000 are in the area of operations," he said, adding that some 77,000 of those were in combat units.The Russian authorities ordered the mobilization of 300,000 Russian reservists in September to bolster its troop numbers in Ukraine.Ahead of the meeting, the Kremlin reportedly urged members of the Human Rights Council not to upset Putin with thorny questions about the war in Ukraine, independent news outlet Verstka said.Members of the body were also reportedly urged to avoid the toxic issue of Russian troop deaths in Ukraine.